package net.xiduth.io.io.File;

/*
 * Copyright 1997-1998 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/* @test
 @bug 4027914
 @summary Check getParent's handling of root directories
 */

import java.io.File;

public class GetParent {

	static void check(String path, String[] parents) throws Exception {
		File f = new File(path);
		String p;
		System.err.print(path + ":");
		for (int i = 0; i < parents.length; i++) {
			p = f.getParent();
			System.err.print(" (" + p + ")");
			if (p == null)
				throw new Exception("No parent for " + f);
			if (!p.equals(parents[i]))
				throw new Exception("Wrong parent for " + f + ": Expected "
						+ parents[i] + ", got " + p);
			f = new File(p);
		}
		if (f.getParent() != null)
			throw new Exception("Too many parents for " + path);
		System.err.println();
	}

	static void testUnix() throws Exception {
		check("foo", new String[] {});
		check("./foo", new String[] { "." });
		check("foo/bar/baz", new String[] { "foo/bar", "foo" });
		check("../../foo", new String[] { "../..", ".." });
		check("foo//bar", new String[] { "foo" });
		check("/foo/bar/baz.gorp", new String[] { "/foo/bar", "/foo", "/" });
	}

	static void testWin32() throws Exception {
		System.err.println("Win32");
		check("foo", new String[] {});
		check(".\\foo", new String[] { "." });
		check("foo\\bar\\baz", new String[] { "foo\\bar", "foo" });
		check("..\\..\\foo", new String[] { "..\\..", ".." });
		check("c:\\foo\\bar\\baz.xxx", new String[] { "c:\\foo\\bar",
				"c:\\foo", "c:\\" });
	}

	public static void main(String[] args) throws Exception {
		if (File.separatorChar == '/')
			testUnix();
		if (File.separatorChar == '\\')
			testWin32();
	}

}
